Writing instrument



FIG. 1 is a perspective view showing my new design;

FIG. 2 is a side view of the writing instrument of FIG. 1, the opposite side being a mirror image thereof;

FIG. 3 is an end view of the writing instrument of FIG. 1; the opposite end being a mirror image thereof;

FIG. 4 is an exploded view of the writing instrument of FIG. 1, wherein the one of the tips of the writing instrument is exposed;

FIG. 5 is an exploded view of the writing instrument of FIG. 1, wherein the writing tips of the writing instrument are exposed;

FIG. 6 is a side view of the writing instrument of FIG. 1, wherein one of the writing tips is facing outward;

FIG. 7 is a perspective view showing a second embodiment of my new design;

FIG. 8 is a side view of the writing instrument of FIG. 7, the opposite side being a mirror image thereof; and,

FIG. 9 is an exploded view of the writing instrument of FIG. 7.

The dashed lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a “writing instrument,” as shown and described. 